Hfc CATV Outdoor Line Extender Amplifier, 870 MHz

Features:
* Power-Double module, high output level.
* Forward and return adopt amply modules which are from NXP or China; advanced technics and reliable performance.
* High quality aluminum-alloy die-cast housing with passivation surface, beautiful and firm, corrosion prevention.
* Waterproof design, lightning proof structure and rainproof connection, fit for outdoor use.
* -20dB independent input and output test ports are set inside (outside optional) the product for the forward and return path.
* Modularized plug-in diplex filter, equalizer and attenuator, easy to choose or upgrade according to user's requirement.
* Independent installation design for the power supply, 60 VAC (220VAC optional).
* Apply to trunk and branch line in two way CATV system, to compensate the attenuation of branch lines.
Specification:ITEMSFORWARD PATHRETURN PATHTechnology1 * 870 MHz GaAs or GaN Push-Pull Hybrid Amp and 1 * 870 MHz GaAs or GaN Power-Doubler Hybrid Amp. Modules. All modules have brand name from G7/EU countries1 * Reverse Hybrid Amp. Module. Module has brand name from G7/EU countriesFrequency Range82 ~ 870 MHz, or higher5 ~ 65 MHzOperating Gain (Includes DPXs, EQs, AGC, …, and Direct Output Module)≥ 38 dB, full range≥ 20 dB, full rangeResponse Flatness≤ ± 0.75 dBGain Control Range0 ~ 20 dB Adj. / plug-in PAD0 ~ 20 dB Adj. / plug-in PADSlope Control Range (Fixed value, Plug-in modules)3 ~ 12dB3 ~ 9dBNoise Figure≤ 9 dB≤ 9 dBReturn Loss (75-ohm Reference)≥ 12 dB, full rangeRecommended Output Levels (Direct Output)≥ 38 / 50 dBmV (82 / 870 MHz)≥ 42 / 42 dBmV (5 / 65 MHz)Rated Signal Level Distortion (*)Cross Modulation (XMOD)≤ - 60 dB≤ - 60 dBComposite Second Order (CSO)≤ - 63 dB≤ - 63 dBComposite Triple Beat (CTB)≤ - 63 dB≤ - 63 dBInput / Output nominal impedances75 ohms, 5/8-24 FemaleHum Modulation≥ 65 dB @ 10A passing currentPower Requirements40 ~ 90 VAC / 50 ~ 60 HzInternal Circuit Voltage24 ± 0.3 VDC (high efficient switchmode power supply), withstand ≥1.5A Load. Overload, overvoltage, short circuit protection.Housing DesignDie-cast aluminium housing design with paint/coating for:
- Good heat spread (Operating Temp.: 0 ~ +60oC, or wider).
- RF shielding ≥ 110 dB.
- IP67 degree of dust and water protection.
- For strand and pedestal mounting.* Measured with 132 NTSC (or 96 PAL) channels of Forward Path, at least 4 T-channels of Return Path, at Recommended Output Levels.
Other requirements:
- Support Adj. Attenuator / plug-in Attenuator (PAD), plug-in DPX, and plug-in EQ between hybrid modules.
- Support Forward IN and OUT Test Ports (-20 dB), Return IN and OUT Test ports (-20 dB).
- Support one or two outputs by plug-in jumper or splitter.
- Return Attenuator and EQ must be designed / located at OUTPUT of Return Amp. Module.
- Lightning Arrestors at all IN/OUT Ports.